Of Fluid Fuel Feed Patents (Class 126/503)
  • Patent number: 10125994
    Abstract: An apparatus and method for aesthetic enhancement of indoor and outdoor living spaces combines fire, bubbling water and light reflection to foster enjoyment and relaxation. Wall assemblies having glass panes are spaced apart from each other to provide a chamber to hold water separate from a burner assembly. Air pumped into the water forms air bubbles in the water. A LED light strip illuminates the water, bubbles and glass panes in changing colors.
    Type: Grant
    Filed: September 26, 2015
    Date of Patent: November 13, 2018
    Inventors: Phillip J. Westrude, Anthony T. Westrude
  • Patent number: 9962028
    Abstract: The invention relates to a food-cooking or -heating appliance, and a method for cooking or heating food using the appliance. The appliance includes a tank (2) for a combustion liquid, a container (3) for food, and a support (1) for holding the tank (2) and the container (3) in position. The tank (2) includes a base (6) and a sidewall (7) inwardly inclined towards the top.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 8, 2018
    Assignee: COOKAL
    Inventor: Laurent Probst
  • Patent number: 9476586
    Abstract: A modular wick holder includes a first wick holder assembly and a second wick holder assembly joined together. The first and second wick holder assemblies are disposed symmetrical to each other. The first wick holder assembly includes a first projection, and the second wick holder assembly includes a second projection opposite and corresponding to the first projection. The first and second projections delimit a space therebetween. When the modular wick holder combines with a wick, the wick is securely held by the space. At least one adjusting member inserts through the first and second wick holder assemblies and is operable to move the first and second projections closer and to have the space include a reduced size.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 25, 2016
    Assignee: Pro-Iroda Industries, Inc.
    Inventor: Wei-Long Chen
  • Patent number: 9388989
    Abstract: Disclosed is a fireplace of combusting gasified liquid fuel, which includes a fireplace body provided with a fireplace chamber. The fireplace body is provided with a cavity which is capable of accommodating a combustion device and formed at the bottom of the fireplace chamber. A fire viewport is provided at the front of the fireplace body. The combustion device includes a liquid supplying device, gasification chamber and burner. A slot used for exposing the burner is provided at the top of the cavity. A flame jet hole is arranged in the burner. A liquid fuel feeding port and a gas outlet are arranged in the gasification chamber.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: July 12, 2016
    Assignee: Ningbo Richen Electrical Appliance Co., Ltd
    Inventor: Wei Zhou
  • Publication number: 20150047627
    Abstract: The invention provides a system for controlling flame to produce a music-reactive fire display. This system comprises a digital signal analyzer, electronically-controlled burner elements that allow variable control of fuel flow rate, an automatic ignition system, flame detection, and a means of communication between the signal analyzer and the burner elements.
    Type: Application
    Filed: August 29, 2014
    Publication date: February 19, 2015
    Inventors: Mike Thielvoldt, Brett Levine
  • Publication number: 20140311478
    Abstract: A power vented fireplace uses a single air inlet to pressurize a staging area from where air is distributed along a passageway between viewing panels to cool them as well as into the combustion chamber as a supply of combustion air. A partial restriction at an inlet to the passageway ensures that sufficient air is directed into the combustion chamber. The inlet to passageway may be adjustable to vary the extent of the restriction. Pressure differential switches may be used to ensure balanced operation of the fireplace.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 23, 2014
    Inventor: Lothar Dan Binzer
  • Patent number: 8851065
    Abstract: A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: October 7, 2014
    Inventor: David Deng
  • Patent number: 8770185
    Abstract: A gas fireplace includes a gas valve, a combustor, and a gas controlling device between the gas valve and the combustor. The gas controlling device has a body, a solenoid valve, and a main controller. The body has a first port, a second port, a first passage, and a second passage, wherein the first passage and the second passage respectively connect the first port to the second port. The solenoid valve is provided in the first passage to be controlled to open and close the first passage. The main controller alternately turns the solenoid valve on and off so as to repeatedly open and close the first passage. Therefore, the gas controlling device provides a variable gas flow to the combustor to reduce the total gas consumption and the user will not be aware of the change of the flames.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 8, 2014
    Assignee: Grand Mate Co., Ltd.
    Inventors: Chung-Chin Huang, Chin-Ying Huang, Hsin-Ming Huang, Hsing-Hsiung Huang, Kuan-Chou Lin, Yen-Jen Yeh
  • Publication number: 20140076304
    Abstract: An improved fire grate may provide fresh oxygen rich air to a secondary combustion zone, created by the improved fire grate, of a combustion chamber where a combustion gas stream is typically oxygen starved assisting in the burning process of incompletely burned particulates and reducing other harmful emissions. A baffle plate may be introduced in the secondary combustion zone to increase a combustion chamber temperature, encourage mixing of oxygen starved air with oxygen rich air and increase a residence time of the combustion gas within the combustion chamber. These aspects of the baffle plate promote more efficient burning of the biomass/fuel. Additionally, log lighter(s) may be disposed in the secondary combustion zone to increase a temperature of the combustion chamber for the purposes of reducing harmful emissions. The improved fire grate may be horizontally and vertically adjusted to fit within different sized fireplace combustion chambers.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: EARTH'S FLAME, INC.
    Inventor: STEVE MARPLE
  • Patent number: 8602020
    Abstract: An improved fire grate may provide fresh oxygen rich air to a secondary combustion zone, created by the improved fire grate, of a combustion chamber where a combustion gas stream is typically oxygen starved assisting in the burning process of incompletely burned particulates and reducing other harmful emissions. A baffle plate may be introduced in the secondary combustion zone to increase a combustion chamber temperature, encourage mixing of oxygen starved air with oxygen rich air and increase a residence time of the combustion gas within the combustion chamber. These aspects of the baffle plate promote more efficient burning of the biomass/fuel. Additionally, log lighter(s) may be disposed in the secondary combustion zone to increase a temperature of the combustion chamber for the purposes of reducing harmful emissions. The improved fire grate may be horizontally and vertically adjusted to fit within different sized fireplace combustion chambers.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: December 10, 2013
    Assignee: Earth's Flame, Inc.
    Inventor: Steve Marple
  • Publication number: 20120216792
    Abstract: A fireplace insert comprising: a gas burner, a fuel/air control valve coupled to the gas burner, a blower coupled to the gas burner, and a controller coupled to the fuel/air control valve and the blower; wherein the controller controls at least one operational parameter of the fuel/air control valve and the blower to produce a flame pattern generated by the gas burner. A method of manufacturing is also provided.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: Lennox Hearth Products LLC
    Inventor: Shiblee Noman
  • Publication number: 20110171587
    Abstract: A liquid fuel-fired furnace installation is composed of at least one fuel tank (1), a fuel evaporation plate (2), a fuel vapor distribution plate (3) and a valve cutting-off the vapor flow, whereas the fuel tank (1) is connected with an evaporation plate (2) via a conduit (7), and the evaporation plate (2) is equipped with a vapor outlet (8) connected with a cut-off valve (4) and a vapor distribution plate (3) is connected with an inlet stub pipe (11), and in its upper part the plate has holes (12) though which the fuel vapors are exhausted. The installation is characterized by having fuel (P) delivered gravitationally via the conduit (7) into the evaporation plate (2) according to the connected vessels rule, which assures that an aerial layer is left over the fuel table (13).
    Type: Application
    Filed: March 15, 2010
    Publication date: July 14, 2011
    Inventors: Miroslaw Nowak, Dariusz Krywalski
  • Patent number: 7870854
    Abstract: An exemplary heating system can be configured with a control system configured for controlling the heating system to reduce inefficiencies, and/or allow the heating system to operate in a relatively optimum manner. In accordance with an exemplary embodiment, a closed-loop control system may be configured to control various portions of the heating system based, at least in part, upon signals and/or information received from various sensors of the heating system. For example, among various other types of information provided within a closed-loop feedback, control may be configured based upon the pressure within the combustion chamber. In accordance with another exemplary embodiment, the closed-loop control system may determine a portion of the heating system is not operating properly, based at least in part upon feedback from one or more sensors configured within the heating system.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: January 18, 2011
    Assignee: FPI Fireplace Products International Ltd
    Inventors: George H. K. Lau, Robert A. Little, Gordon Arthur Lloyd Coutts, Davinder Gopal Lal, Chi Ming Gavin Tham
  • Publication number: 20110005509
    Abstract: An improved fire grate may provide fresh oxygen rich air to a secondary combustion zone, created by the improved fire grate, of a combustion chamber where a combustion gas stream is typically oxygen starved assisting in the burning process of incompletely burned particulates and reducing other harmful emissions. A baffle plate may be introduced in the secondary combustion zone to increase a combustion chamber temperature, encourage mixing of oxygen starved air with oxygen rich air and increase a residence time of the combustion gas within the combustion chamber. These aspects of the baffle plate promote more efficient burning of the biomass/fuel. Additionally, log lighter(s) may be disposed in the secondary combustion zone to increase a temperature of the combustion chamber for the purposes of reducing harmful emissions. The improved fire grate may be horizontally and vertically adjusted to fit within different sized fireplace combustion chambers.
    Type: Application
    Filed: November 17, 2009
    Publication date: January 13, 2011
    Inventor: Steve Marple
  • Patent number: 7823581
    Abstract: A gas valve (14) control system (10) uses a control signal (16) to enable a valve (14) and a validation signal (22) to validate the control signal (16). The system (10) includes a valve (14) connected to a burner (12). A receiver (18) is electrically connected to the valve (14) and provides the valve (14) with the control signal (16). A controller (20) has a control transmitter (24) in wireless communication with the receiver (18) to transmit the control signal (16) to the receiver (18) at a speed of light. The controller (20) further includes a validation transmitter (26) to transmit a validation signal (22) to the receiver (18) at a speed of sound. The valve (14) is enabled by the control signal (16) if a time delay between the receiver (18) receiving the control signal (16) and the validation signal (22) is shorter than a maximum delay period. The control signal (16) is discarded if the time delay is longer than the maximum delay period.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: November 2, 2010
    Assignee: Maxitrol Company
    Inventors: Juan F. Velasquez, Barbara Happe
  • Publication number: 20090101133
    Abstract: A device for regulating the air/gas mixture supplied to a gas burner appliance of a decorative fire is provided. The device includes a duct for supplying the air/gas fuel mixture to the burner and a choke of the flow of primary air taken into the duct and adapted to be mixed with the flow of gas or the flow of the air/gas mixture, in which heat-sensitive actuator acting directly on the choke is provided so that the choking of the flow is regulated automatically as a function of the heat level reached in the heat-sensitive actuator.
    Type: Application
    Filed: October 24, 2006
    Publication date: April 23, 2009
    Applicant: SIT LA PRECISA S.P.A.
    Inventors: Michele Bortoliero, Edward Hart
  • Patent number: 7165544
    Abstract: A fireplace including a burner disposed to combust a combustible gas and air mixture within a combustion chamber. An exposed panel defining an exposed surface. A touch portion of the exposed surface isolated from heat generated within the combustion chamber to reduce a temperature of the touch portion. A control circuit coupled to the touch portion. The control circuit monitoring the touch portion and driving a component of the fireplace in response to a change at the touch portion.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: January 23, 2007
    Assignee: HNI Technologies Inc.
    Inventors: Thomas J. Bachinski, Brynn Douglas Rogers, David J. Oja
  • Patent number: 6953037
    Abstract: A direct vent fireplace installation assembly is provided that includes a furniture unit having an enlarged receptacle well above the ground, and a direct vent fireplace unit positioned in the receptacle of the furniture unit. The fireplace unit has a firebox contained in an outer housing, a burner assembly in the firebox, and a contoured surround positioned in and spaced apart from walls of the firebox. A chimney is coupled to the firebox. In one embodiment, the fireplace unit is mounted in a receptacle in a wall structure positioned above the floor, at approximately eye level. It is emphasized that this abstract is provided to comply with the rules requiring an abstract. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: October 11, 2005
    Assignee: Travis Industries, Inc.
    Inventor: Kurt W. F. Rumens
  • Patent number: 6910477
    Abstract: The invention relates to a gas fired vented heater preferably having a relatively thin profile adapted for mounting on or in a wall structure and having a heat radiant display surface with visible decorative refractory defining a rear wall of the combustion chamber.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: June 28, 2005
    Assignee: Off The Wall Fires, Inc.
    Inventor: Nicholas Andrew Barber
  • Patent number: 6748942
    Abstract: A fireplace including a burner disposed to combust a combustible gas and air mixture within a combustion chamber. An exposed panel defining an exposed surface. A touch portion of the exposed surface isolated from heat generated within the combustion chamber to reduce a temperature of the touch portion. A control circuit coupled to the touch portion. The control circuit monitoring the touch portion and driving a component of the fireplace in response to a change at the touch portion.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: June 15, 2004
    Assignee: HON Technology Inc.
    Inventors: Thomas J. Bachinski, David J. Oja
  • Patent number: 6736132
    Abstract: A portable outdoor fireplace is provided. The portable outdoor fireplace has a housing that supports a gas burner, typically for heat, and a separate ornamental flame. The outdoor fireplace also has a moveable hood. A gas shut-off valve is manipulated based on the position of the hood.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 18, 2004
    Assignee: Weber-Stephen Products Co.
    Inventors: Erich J. Schlosser, Adrian A. Bruno
  • Publication number: 20040011353
    Abstract: A fireplace including a burner disposed to combust a combustible gas and air mixture within a combustion chamber. An exposed panel defining an exposed surface. A touch portion of the exposed surface isolated from heat generated within the combustion chamber to reduce a temperature of the touch portion. A control circuit coupled to the touch portion. The control circuit monitoring the touch portion and driving a component of the fireplace in response to a change at the touch portion.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 22, 2004
    Inventors: Thomas J. Bachinski, David J. Oja
  • Publication number: 20040011352
    Abstract: A fireplace including a burner disposed to combust a combustible gas and air mixture within a combustion chamber. An exposed panel defining an exposed surface. A touch portion of the exposed surface isolated from heat generated within the combustion chamber to reduce a temperature of the touch portion. A control circuit coupled to the touch portion. The control circuit monitoring the touch portion and driving a component of the fireplace in response to a change at the touch portion.
    Type: Application
    Filed: March 6, 2003
    Publication date: January 22, 2004
    Applicant: HON TECHNOLOGY INC.
    Inventors: Thomas J. Bachinski, Brynn Douglas Rogers, David J. Oja
  • Patent number: 6640802
    Abstract: The invention relates to an actuation device of a gas distribution valve connected to a burner provided with a control thermocouple of the flame presence, said valve (100) comprising: a gas inlet duct (1); two or more gas delivery ducts (2, 3, 4); gas interception means (8, 10) controlling selectively said inlet duct (1) and said delivery ducts (2, 3, 4), said means can be actuated through axial movement of a stem (5) belonging to said valve; electrical means (6, 7, 101) cooperating with said thermocouple and said interception means of the gas inlet duct. Said device comprises a flexible metal wire (14) sliding inside the sheath and fixed at one end (141) to said stem (5) of said valve (100) and at the other end (142) to a control lever (20) rotatable relative to a support plane (30) according to discreet positions (21, 22, 23, 24, 25) corresponding to the various positions of said interception means.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: November 4, 2003
    Assignee: OP Controls SpA
    Inventors: Maurizio Grando, Michele Bortoliero
  • Patent number: 6409500
    Abstract: A process and product for producing an attractive soot-free fire from a specially formed gas pipe embedded in a bed of broken, specially-formulated, tempered glass pieces is provided. The broken glass pieces are preferably formed from a specifically-formulated, tempered glass which, after formation, is broken and then sifted and washed so as to remove any slivers or debris. The gas pipe is preferably formed with two rows of equally spaced openings offset with respect to each other and spaced approximately 90° apart to burn gas in a cleaner and hotter manner. A number of gas pipes may be used and formed in any desired configuration to add to the attractiveness of the soot-free fire produced thereby.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 25, 2002
    Inventor: Mark T. Georgantas
  • Patent number: 6192881
    Abstract: The invention comprises a portable open flame fireplace. The invention has a planar base with a plurality of gas orifices. The base is of any desired shape. The gas is directed through channels in the base to the orifices, where it emerges and ignites. In an alternate embodiment, the base is enclosed with a watertight windscreen above the base. The windscreen may also contain water, which allows the illusion of flames emerging from a free water surface. The invention further comprises a detachable portable fuel source, such as a propane gas bottle. The invention also has a removable cover for storage and transport.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: February 27, 2001
    Inventor: Ronald Scott Nix
  • Patent number: 6082388
    Abstract: The device comprises a safety valve with an actuator which can be armed manually, a regulation valve disposed in a duct downstream of the safety valve for supplying a main burner, a tapping duct for supplying a pilot burner, and a flame detector for the pilot burner for supplying the actuator of the safety valve with sufficient energy to hold the safety valve open after manual arming has taken place and the pilot light has been lit. In order also to supply another burner without compromising the safety of the device, an on/off valve provided in a duct branching off the main duct between the safety valve and the regulation valve has an operating member coupled to the manual arming member of the actuator of the safety valve for keeping the on/off valve in a condition in which it shuts off the branch duct during the manual arming of the safety-valve actuator.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: July 4, 2000
    Assignee: Sit La Precisa S.r.l.
    Inventors: Gianpiero Turrin, Pierluigi De' Stefani, Vanni Gallocchio
  • Patent number: 5890485
    Abstract: A novel control system for altering a fixed pattern of gas flames in a fireplace having artificial logs comprises a log set having a burner system and the burner system having a gas valve control which is coupled to source of gas or air to be regulated. The control system has a valve which controls the air or gas being supplied to the burner and a control sensor is coupled to the control system for activating the time sequence of the cycle of the control system so as to raise or lower the gas flames being regulated and to disturb the pattern of gas flames to produce the effect of dancing flames.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: April 6, 1999
    Assignee: Heat-N-Glo Fireplace Products, Inc.
    Inventors: Ronald John Shimek, Daniel Curtis Shimek, David Charles Lyons
  • Patent number: 5738084
    Abstract: An unvented patio fireplace comprises a fireplace housing that has a front panel configured like an in room fireplace, and which fireplace housing is mounted onto a pedestal and base support for movement along a surface. The base support includes wheels and casters as desired for providing mobility. The base also supports a self contained fuel supply for supplying gas to a burner in the fireplace housing. Burner controls include an oxygen depletion sensor so that the unit can be unvented, and tilt sensors that will sense when the fireplace is tilted a selected amount to shut off the gas supply.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: April 14, 1998
    Assignee: Hussong Manufacturing Co., Inc.
    Inventor: Dudley D. Hussong
  • Patent number: 5575274
    Abstract: A gas-fired, simulated log fireplace insert incorporating an automatic flue damper for controlling the operational state of a chimney vent (open/closed) in response to gas combustion, an externally mounted carbon monoxide detector for terminating or inhibiting gas combustion in response to an unsafe level of detected carbon monoxide and a temperature actuated switch, disposed within the firebox area of the fireplace proximate the flue, for terminating gas combustion in response to excessive fireplace temperatures caused by a malfunctioning damper.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: November 19, 1996
    Inventor: Thomas M. DePalma
  • Patent number: 5485830
    Abstract: A gas fireplace assembly for connection to a venting system comprises an outer shell for installation in the interior space of a building with the venting system extending into the outer shell. A fireplace unit is insertable within the shell that includes a combustion chamber. The combustion chamber includes a removable platform supporting a burner unit to be secured within the combustion chamber. The existing venting system is connected to the combustion chamber. The foregoing arrangement permits easy conversion of the fireplace assembly to different styles of decorative burner units or from a decorative gas burner to an efficient heating fireplace system and vice versa in a simple and economical manner.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: January 23, 1996
    Inventor: Lothar Binzer
  • Patent number: 5479915
    Abstract: A heating device for burning gaseous fuels comprises an inner shell (3) of U-shaped or C-shaped cross-section which defines a combustion chamber (9) which is bordered by a covering plate (5) and a floor plate (4), can be closed by a door arrangement (6). Gas burner assembly (13) is arranged on a burner base plate (12) and secured to the inner shell (3). Outer shell (2) of U-shaped or C-shaped cross section, on the floor plate. The outer shell (2) is arranged from the inner shell (3) at a distance forming an intermediate space (28). End edges of outer shell (2) and the inner shell (3) are welded together. Openings (27) are arranged in the inner shell between the combustion chamber (9)and the intermediate space (28) which forms a flue gas passage between the openings (27) and the flue outlet (44) region of the covering leading (44) to a smoke pipe connection piece (45). Sheet elements adjacent the outer shell form a convection channel with the outer shell.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: January 2, 1996
    Inventor: Karl Riener
  • Patent number: 5469838
    Abstract: An enclosed gas fireplace which efficiently transfers heat from a combustion chamber to surrounding air chambers and to air flow conduits which pass through a flue gas offtake. The fireplace has an outer shell that remains relatively cool, so that the fireplace can be installed in a framed sheetrock or wood enclosure without the need for utilizing the special masonry work or masonry chimney normally required for a fireplace. In addition, the invention provides a special burner arrangement to enhance the aesthetic quality of the fire and which provides a clean-burning gas flame to meet modern emission standards.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: November 28, 1995
    Inventors: Lynn C. Broadbent, Craig L. Broadbent
  • Patent number: 5347982
    Abstract: A gas burning fireplace having a burner for producing a flame. A rod in the vicinity of the burner. A gap between the burner and the rod and wherein a flame is produced in the gap. An apparatus for monitoring the presence of a flame including a battery for applying a DC voltage between the rod and the burner. An electric circuit means for sensing a DC current between the rod and the burner.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: September 20, 1994
    Assignee: Canadian Heating Products Inc.
    Inventors: Lothar Binzer, Didace E. Morrissette, Ronald Toth
  • Patent number: 5333601
    Abstract: This invention relates to A contra-flow masonry heater comprising: a firebox having a front opening, an air intake communicating with a source of fresh air and an upper flue outlet; at least one vertical contra-flow heat exchange channel communicating between the flue outlet and an exhaust port, the firebox and channel having walls of refractory material for mass absorption of heat energy from a burning fuel and combustion gases contained therein and subsequent radiant release of heat energy to an adjacent space, a down draft hood communicating between the exhaust port and outside air, the down draft hood having a plenum communicating among an exhaust inlet, a chimney and a relief port, the relief port being located below the elevation of the exhaust inlet and communicating with the source of fresh air; and an air tight door secured to the front opening of the firebox.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: August 2, 1994
    Assignees: Christy Brianna Hill, Andrea Kirsty Lee Hill
    Inventor: Kerry Hill
  • Patent number: 5322052
    Abstract: Particulate emissions from a wood fire in a fireplace having a baffle for preventing the direct flow of fluid into the flue from the wood fire are reduced by locating a hydrocarbon gas pilot source in proximity to the baffle. Ignited gas from the pilot combines particulate emissions from the wood fire while they are in the fireplace and before they reach the flue. Air from outside of the fireplace is supplied into proximity with ignited pilot gas so the outside air and the ignited pilot gas mix. A flame sensor for the pilot controls the flow of gas to the pilot source and ignition of the pilot source.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: June 21, 1994
    Assignee: The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Robert C. McCrillis, Wade H. Ponder, Nelson L. Butts, James H. Abbott
  • Patent number: 5033454
    Abstract: In accordance with the invention, a fireplace starting apparatus is provided which includes a control valve for controlling the flow of flammable gas to a fireplace burner, with said control valve being adapted for permanent installation in a structure external of and adjacent to a fireplace. Said apparatus includes a conduit connectable at one end to a fireplace burner within the fireplace and at the other end to the control valve. In one embodiment, the device may be provided with a remotely operable ignition/reignition device including an igniter mountable adjacent the burner within the fire box, an actuator located adjacent to the control valve and means operably connecting the actuator to the igniter. A sensor adjacent to the igniter may detect the absence of a flame and cause the igniter to light the gas flame upon startup and also during operation of the gas flame is extinguished while the gas is still flowing.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: July 23, 1991
    Inventor: T. Randolph Smith
  • Patent number: 4962750
    Abstract: A fireplace gas burner apparatus incorporates a provision for remotely controlled ignition. Auxiliary manual control of electrical circuitry that produces ignition is also provided.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: October 16, 1990
    Assignee: R. H. Peterson Company
    Inventor: Jon D. Bridgewater
  • Patent number: 4949705
    Abstract: In accordance with the invention, a fireplace starting apparatus is provided which includes a control valve for controlling the flow of flammable gas to a fireplace burner, with said control valve being adapted for permanent installation in a structure external of and adjacent to a fireplace. Said apparatus includes a conduit connectable at one end to a fireplace burner within the fireplace and at the other end to the control valve. In one embodiment, the device may be provided with a remotely operable ignition/reignition device including an igniter mountable adjacent the burner within the fire box, an actuator located adjacent to the control valve and means operably connecting the actuator to the igniter. A sensor adjacent to the igniter may detect the absence of a flame and cause the igniter to light the gas flame upon startup and also during operation of the gas flame is extinguished while the gas is still flowing.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: August 21, 1990
    Inventor: T. Randolph Smith
  • Patent number: 4924564
    Abstract: An ultrasonic remote controlled switching device having very low power consumption is shown. The device is capable of switching high power and/or generating a power pulse for operating associated electrical control devices. The switching device responses to ultrasonic wave generated by a remote hand-held transmitter unit to change its state from ON to OFF or vice versa and simultaneously generates the desirable power pulse. The remote switching device is suitable for use in remotely controlling the operation of a natural gas fireplace.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: May 15, 1990
    Inventor: Reza H. Shah
  • Patent number: 4793322
    Abstract: A zero clearance fireplace of the type to be installed inside of a building against or near an outside wall is provided. The box shaped fireplace is provided with four substantially vertical walls, a top wall and a bottom wall. The bottom wall comprises an inner plenum and an outer plenum below the combustion chamber. The rear wall comprises an outer plenum connected to the bottom plenum of the bottom wall, a middle plenum connected to a source of fresh air and connected to the inner plenum of the bottom wall and an inner plenum which is connected to a horizontal exhaust pipe which is inserted through the outside wall and is connected to the combustion chamber through a baffle arrangement.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: December 27, 1988
    Inventors: Ronald J. Shimek, Daniel C. Shimek